could describe
Regular verb: describe - described- described

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could describe
you could describe
she could describe
we could describe
you could describe
they could describe 	I could be describing
you could be describing
she could be describing
we could be describing
you could be describing
they could be describing	I could have described
you could have described
she could have described
we could have described
you could have described
they could have described	I could have been describing
you could have been describing
she could have been describing
we could have been describing
you could have been describing
they could have been describing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not describe
you could not describe
she could not describe
we could not describe
you could not describe
they could not describe 	I could not be describing
you could not be describing
she could not be describing
we could not be describing
you could not be describing
they could not be describing	I could not have described
you could not have described
she could not have described
we could not have described
you could not have described
they could not have described	I could not have been describing
you could not have been describing
she could not have been describing
we could not have been describing
you could not have been describing
they could not have been describing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I describe?
could you describe?
could she describe?
could we describe?
could you describe?
could they describe? 	could I be describing?
could you be describing?
could she be describing?
could we be describing?
could you be describing?
could they be describing? 	could I have described?
could you have described?
could she have described?
could we have described?
could you have described?
could they have described? 	could I have been describing?
could you have been describing?
could she have been describing?
could we have been describing?
could you have been describing?
could they have been describing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not describe?
could you not describe?
could she not describe?
could we not describe?
could you not describe?
could they not describe? 	could I not be describing?
could you not be describing?
could she not be describing?
could we not be describing?
could you not be describing?
could they not be describing? 	could I not have described?
could you not have described?
could she not have described?
could we not have described?
could you not have described?
could they not have described? 	could I not have been describing?
could you not have been describing?
could she not have been describing?
could we not have been describing?
could you not have been describing?
could they not have been describing?